List questions from group-cohomology

Published on 18 Feb 2019 - 5:39

363

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How to compute (co)homology group of the Eilenberg-Maclane space $K(\pi,1)$

Published on 21 Feb 2019 - 5:53

251

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Group cohomology and singular cohomology of classifying space

Published on 25 Mar 2026 - 6:12

351

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Why is the Bockstein morphism a derivation?

Published on 25 Mar 2026 - 7:33

1k

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Cohomology of colimit is limit of cohomology ? (group cohomology)

Published on 25 Mar 2026 - 9:50

301

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A consequence of Schanuel's lemma

Published on 08 Mar 2019 - 14:57

759

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Generalisation of Hilbert's 90 Theorem

Published on 25 Mar 2026 - 15:59

279

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Higher cup-1 product of coboundaries is also a coboundary?

Published on 25 Mar 2026 - 21:49

139

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Cohomological dimension of a topological group with torsion

Published on 25 Mar 2026 - 6:12

196

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group cohomology of abelianization

Published on 12 Apr 2019 - 23:48

134

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Rank of a free Abelian subgroup gives a lower bound for vcd

Published on 15 Apr 2019 - 10:20

61

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Help understanding a theorem about group homology $H_0$

Published on 23 Apr 2019 - 15:33

71

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$H^2(G;\mathbb Z) \cong H^1(G;\mathbb {C}^*)$.

Published on 23 Apr 2019 - 18:36

68

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What does "Realizes the operator" really mean?

Published on 24 Apr 2019 - 14:55

133

Views

Is my proof that $H^1(X,F) = 0$ for the skyscraper sheaf correct?

Published on 25 Mar 2026 - 12:39

List Question

group cohomology equivalent to topological singular cohomology

How to compute (co)homology group of the Eilenberg-Maclane space $K(\pi,1)$

Group cohomology and singular cohomology of classifying space

Why is the Bockstein morphism a derivation?

Cohomology of colimit is limit of cohomology ? (group cohomology)

A consequence of Schanuel's lemma

Generalisation of Hilbert's 90 Theorem

Higher cup-1 product of coboundaries is also a coboundary?

Cohomological dimension of a topological group with torsion

group cohomology of abelianization

Rank of a free Abelian subgroup gives a lower bound for vcd

Help understanding a theorem about group homology $H_0$

$H^2(G;\mathbb Z) \cong H^1(G;\mathbb {C}^*)$.

What does "Realizes the operator" really mean?

Is my proof that $H^1(X,F) = 0$ for the skyscraper sheaf correct?

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